U.S. patent number 9,782,708 [Application Number 15/236,213] was granted by the patent office on 2017-10-10 for filtration sealing system.
This patent grant is currently assigned to Cummins Filtration IP, Inc.. The grantee listed for this patent is CUMMINS FILTRATION IP, INC.. Invention is credited to Buwa A. Baldeh, Pathikrit T. Banerjee, Thomas J. Braun, Christopher E. Holm, Caryn J. Kindkeppel, Brian W. Schwandt.
United States Patent |
9,782,708 |
Kindkeppel , et al. |
October 10, 2017 |
Filtration sealing system
Abstract
A filtration sealing system is provided for sealing a filter
element in a housing at a mating interface therebetween. The
sealing system includes a keyed interface. A replacement filter
element is provided for such filtration sealing system, with the
replacement filter element including a keyed interface.
Inventors: |
Kindkeppel; Caryn J.
(Stoughton, WI), Schwandt; Brian W. (Fort Atkinson, WI),
Braun; Thomas J. (Stoughton, WI), Holm; Christopher E.
(Madison, WI), Banerjee; Pathikrit T. (Abu Dhabi,
AE), Baldeh; Buwa A. (Madison, WI) |
Applicant: |
Name |
City |
State |
Country |
Type |
CUMMINS FILTRATION IP, INC. |
Columbus |
IN |
US |
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Assignee: |
Cummins Filtration IP, Inc.
(Columbus, IN)
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Family
ID: |
42933505 |
Appl.
No.: |
15/236,213 |
Filed: |
August 12, 2016 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20160346719 A1 |
Dec 1, 2016 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
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14052057 |
Oct 11, 2013 |
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13299419 |
Nov 18, 2011 |
9415333 |
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12420884 |
Apr 9, 2009 |
8061530 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B01D
46/009 (20130101); B01D 46/0002 (20130101); B01D
46/10 (20130101); B01D 35/30 (20130101); B01D
29/01 (20130101); B01D 2201/34 (20130101); B01D
2201/4053 (20130101); B01D 2201/4046 (20130101); B01D
2271/022 (20130101); B01D 2271/02 (20130101) |
Current International
Class: |
B01D
29/01 (20060101); B01D 46/00 (20060101); B01D
46/10 (20060101); B01D 35/30 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
2296402 |
|
Nov 1998 |
|
CN |
|
2372041 |
|
Apr 2005 |
|
CN |
|
1754612 |
|
Apr 2006 |
|
CN |
|
101374582 |
|
Feb 2009 |
|
CN |
|
201292900 |
|
Aug 2009 |
|
CN |
|
8808632 |
|
Oct 1988 |
|
DE |
|
29613098 |
|
Sep 1996 |
|
DE |
|
10 2008 062 956 |
|
Jun 2010 |
|
DE |
|
0747579 |
|
Aug 2000 |
|
EP |
|
1129760 |
|
Sep 2001 |
|
EP |
|
1166843 |
|
Jan 2002 |
|
EP |
|
1208902 |
|
May 2002 |
|
EP |
|
0982062 |
|
Jun 2004 |
|
EP |
|
1233173 |
|
Mar 2005 |
|
EP |
|
1747053 |
|
Oct 2007 |
|
EP |
|
2214505 |
|
Sep 1974 |
|
FR |
|
970826 |
|
Sep 1964 |
|
GB |
|
2082932 |
|
Mar 1982 |
|
GB |
|
60-112320 |
|
Jun 1985 |
|
JP |
|
H1-163408 |
|
Jun 1989 |
|
JP |
|
H1-171615 |
|
Jul 1989 |
|
JP |
|
H2-025009 |
|
Feb 1990 |
|
JP |
|
WO-2004/054684 |
|
Jul 2004 |
|
WO |
|
WO-2005/058461 |
|
Jun 2005 |
|
WO |
|
WO-2005/077487 |
|
Aug 2005 |
|
WO |
|
WO-2007/009039 |
|
Jan 2007 |
|
WO |
|
WO-2007/089662 |
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Aug 2007 |
|
WO |
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Other References
First Office Action issued for German Patent Application No. 11
2010 001 567.8, including English language translation, dated May
18, 2017, 12 pages. cited by applicant .
International Search Report and Written Opinion issued for
PCT/US2017/030386, dated Jul. 26, 2017, 9 pages. cited by
applicant.
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Primary Examiner: Keyworth; Peter
Attorney, Agent or Firm: Foley & Lardner LLP
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application is a continuation of U.S. patent
application Ser. No. 14/052,057, filed Oct. 11, 2013, which is a
continuation of U.S. patent application Ser. No. 13/299,419, filed
Nov. 18, 2011, now U.S. Pat. No. 9,415,333, which is a continuation
of U.S. patent application Ser. No. 12/420,884, filed Apr. 9, 2009
now U.S. Pat. No. 8,061,530. The contents of these applications are
incorporated herein by reference in their entirety.
Claims
What is claimed is:
1. A filtration sealing system, the system comprising: a first
housing section having a first housing section border therearound;
a second housing section having a second housing section border
therearound; and a filter element positioned between the first
housing section and the second housing section, the filter element
including filter media and a filter element border extending from
the filter media in an x-y plane, the filter element border
providing a mating interface between the filter element and the
first and second housing section borders, a first side of the
filter element border engaging the first housing section border and
a second, opposite side of the filter element border engaging the
second housing section border, one of the first side of the filter
element border and the second side of the filter element border
comprising one or more axial projections projecting in a
z-direction that is perpendicular to the x-y plane, a
circumferential surface of the filter element border comprising a
radially extending recess in the x-y plane, wherein one of the
first housing section border and the second housing section border
includes one or more axial recesses recessed in the z-direction and
complementally receiving the one or more axial projections therein;
wherein one of the first housing section border and the second
housing section border includes an inner housing surface
complementary with the circumferential surface of the filter
element border; and wherein the filter element border is sealed
along the mating interface, including being sealed at all of the
one or more axial projections and all of the one or more axial
recesses, and blocks fluid flow across the filter element border,
including blocking fluid flow across the one or more axial
projections and the one or more axial recesses.
2. The filtration sealing system of claim 1, wherein the one or
more axial projections comprises a plurality of axial projections,
and the one or more axial recesses comprises a plurality of axial
recesses.
3. The filtration sealing system of claim 2, wherein the plurality
of axial projections are spaced at regular intervals along the
filter element border.
4. The filtration sealing system of claim 2, wherein the plurality
of axial projections are spaced at irregular intervals along the
filter element border.
5. The filtration sealing system of claim 2, wherein the plurality
of axial projections comprise a plurality of humped arches.
6. The filtration sealing system of claim 5, wherein the plurality
of axial recesses comprise a plurality of concave recessed
slits.
7. The filtration sealing system of claim 6, wherein the filter
element border comprises a gasket that is formed integral with a
remainder of the filter element.
8. The filtration sealing system of claim 1, wherein the radially
extending recess defines a heart shape segment in the filter
element border.
9. The filtration sealing system of claim 1, wherein the filter
media possess a racetrack-shaped cross-section.
10. The filtration sealing system of claim 9, wherein the plurality
of axial projections are spaced at regular intervals along the
filter element border.
11. The filtration sealing system of claim 1, wherein the filter
element border comprises a gasket that is formed integral with a
remainder of the filter element.
12. The filtration sealing system of claim 1, wherein the radially
extending recess is positioned so as to result in the filter
element border possessing a non-symmetrical shape in the x-y
plane.
13. A filtration sealing system, the system comprising: a housing
comprising: a first housing section having a first housing section
border therearound, and a second housing section having a second
housing section border therearound; and a filter element positioned
between the first housing section and the second housing section,
the filter element including filter media and a filter element
border extending from the filter media in an x-y plane, the filter
element border providing a mating interface between the filter
element and the first and second housing section borders, a first
side of the filter element border engaging the first housing
section border and a second, opposite side of the filter element
border engaging the second housing section border, one of the first
side and the second side of the filter element border comprising a
plurality of axial projections projecting in a z-direction that is
perpendicular to the x-y plane, wherein one of the first housing
section border and the second housing section border includes a
plurality of axial recesses recessed in the z-direction and
complementally receiving the plurality of axial projections
therein; wherein one of the first housing section border and the
second housing section border includes an inner housing surface
complementary with a circumferential radial surface of the filter
element border so as to form a one-way-only fit of the filter
element and the housing, wherein the one-way-only fit is
facilitated by a radially extending recess in the x-y plane of the
circumferential radial surface of the filter element border; and
wherein the filter element border is sealed along the mating
interface, including being sealed at all of the plurality of axial
projections and all of the plurality of axial recesses, and blocks
fluid flow across the filter element border, including blocking
fluid flow across the plurality of axial projections and the
plurality of axial recesses.
14. The filtration sealing system of claim 13, wherein the
plurality of axial projections are spaced at regular intervals
along the filter element border.
15. The filtration sealing system of claim 14, wherein the
plurality of axial projections comprise a plurality of humped
arches.
16. The filtration sealing system of claim 13, wherein the
plurality of axial projections are spaced at irregular intervals
along the filter element border.
17. The filtration sealing system of claim 16, wherein the
plurality of axial projections comprise a plurality of humped
arches.
18. The filtration sealing system of claim 13, wherein the filter
media possess a racetrack-shaped cross-section.
19. The filtration sealing system of claim 13, wherein the filter
element border defines a heart shape segment therein extending in
the x-y plane.
20. The filtration sealing system of claim 13, wherein the filter
element border comprises a radially extending recess, the radially
extending recess positioned so as to result in the filter element
border possessing a non-symmetrical shape in the x-y plane.
21. The filtration sealing system of claim 20, wherein the
plurality of axial projections are spaced at regular intervals
along the filter element border.
22. The filtration sealing system of claim 13, wherein the filter
element border comprises a gasket that is formed integral with a
remainder of the filter element.
Description
BACKGROUND AND SUMMARY
The invention relates to filtration sealing systems, including
filter elements, housings, and replacement filter elements.
Filtration sealing systems are known for sealing a filter element
in a housing at a mating interface therebetween. The present
invention arose during continuing development efforts in filtration
sealing technology, including in the preferred embodiment directed
toward improvements in one or more of the following: a system
permitting installation or replacement of only an authorized filter
element; a system permitting installation or replacement of a
filter element only in a given orientation; improved dimensional
stability of a gasket and/or housing in sealing relation along a
border; a system providing one-way-only fit of a filter element in
the housing; replacement filter elements for the above systems;
improved sealing along housing ports.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view of a filter element in a
housing.
FIG. 2 is a perspective view of a component of FIG. 1 and
illustrating the present invention.
FIG. 3 is a perspective view of a component of FIG. 1 and
illustrating the present invention.
FIG. 4 is an enlarged view of a portion of FIG. 2.
FIG. 5 is an enlarged view of a portion of FIG. 3.
FIG. 6 is an elevation view of an alternate embodiment of a
component of FIG. 1 in accordance with the invention.
FIG. 7 is an elevation view of an alternate embodiment of a
component of FIG. 1 in accordance with the invention.
FIG. 8 is a sectional view illustrating mating of the components of
FIGS. 6 and 7.
FIG. 9 is like FIG. 8 and shows another embodiment.
FIG. 10 is like FIG. 9 and shows another embodiment.
FIG. 11 is like FIG. 1 and further illustrates the embodiment of
FIG. 9.
FIG. 12 is like FIG. 1 and further illustrates the embodiment of
FIG. 10.
FIG. 13 is like FIG. 1 and shows another embodiment.
FIG. 14 is like FIG. 6 and shows another embodiment.
FIG. 15 is an exploded sectional view of a portion of a component
of FIG. 1 and illustrating the present invention.
DETAILED DESCRIPTION
FIG. 1 shows a filtration sealing system 20 for sealing a filter
element 22 in a housing 24 at a mating interface such as 26
therebetween, to be described. The housing is provided by mating
housing sections 28 and 30 mounted and attached to each other in
any suitable manner, such as clamps, bolts (e.g. as shown in dashed
line at 32), and so on. The housing has an inlet port 34 for
receiving fluid to be filtered, e.g. gas (including air) or liquid,
which fluid flows through filter element 22 and is discharged as
clean filtered fluid at outlet port 36.
The sealing system includes a keyed interface as shown at 38 in
FIGS. 2 and 40 in FIG. 3. FIG. 2 is a perspective view of upper
housing section 28 turned over to view the underside thereof. FIG.
3 is a perspective view of filter element 22 having a border 42
which may be composed of gasket material itself or may have a
gasket added thereto. Keyed interface 38, 40 permits installation
or replacement of only an authorized filter element 22 mating to
the mating interface. The keyed interface permits installation or
replacement of the filter element only in a given orientation.
Filter element 22 and housing section 28 have borders mating with
each other at a gasket 42 therebetween and providing the noted
mating interface. The gasket and at least one of the housing and
the filter element engage each other in detent relation providing
the noted keyed interface. In the embodiment of FIGS. 2, 3 gasket
42 extends along an extension direction along a perimeter. The
gasket has one or more humped arches such as 44, FIGS. 3, 5, spaced
along the perimeter and extending transversely of the noted
extension direction. Housing section 28 has one or more concave
recessed slits such as 46, FIGS. 2, 4, spaced along the border
along the perimeter and extending transversely of the noted
extension direction and complementally receiving respective humped
arches 44 therein. The arches and slits may be regularly or
irregularly spaced, and may be symmetric or non-symmetric around
the perimeter. In one embodiment, gasket 42 is in-molded to and
integral with filter element 22. The one or more concave recessed
slits 46 are in the housing border. The plurality of humped arches
44 and the plurality of concave recessed slits 46 are in
complemental detent relation engagement and are selectively spaced
along the perimeter to provide dimensional stability of the housing
at the gasket in sealing relation along the border. At least one of
the sides, shape and spacing of at least the set of one or more
humped arches 44 and the set of one or more concave recessed slits
46 is selectively configured to allow a one-way fit of the filter
element in the housing to ensure correct installation every
time.
FIGS. 6-8 show a further embodiment and use like reference numerals
from above where appropriate to facilitate understanding. At least
two gaskets are provided, including a first gasket 50 on the filter
element, and a second gasket 52 on the housing. The gaskets engage
each other in keyed relation and sealing engagement. The filter
element and the housing have borders 40 and 38 mating with each
other at two-part gasket 50, 52 therebetween and providing the
mating interface. The two-part gasket is provided by at least first
gasket 50 and second gasket 52. Gasket 50 has a gasket-engagement
surface 54 for engaging gasket 52. Gasket 52 has a
gasket-engagement surface 56 for engaging gasket 50. The
gasket-engagement surfaces 54 and 56 engage each other in keyed
relation providing the keyed interface. The two-part gasket extends
along an extension direction along a perimeter. Gasket 50 extends
along the extension direction to a beveled end 54 tapered along a
first taper along the extension direction. Gasket 52 extends along
the extension direction to a beveled end 56 tapered along a second
taper along the extension direction. The first and second tapers
are opposite and complemental to each other, FIG. 8. The beveled
ends at 54 and 56 engage each other in sealed relation at the keyed
interface.
In one embodiment, the first gasket includes first and second
gasket segments 50 and 58 opposite each other across the perimeter.
The second gasket includes third and fourth gasket segments 52 and
60 opposite each other across the perimeter. First gasket segment
50 is between fourth and third gasket segments 60 and 52 along the
extension direction along the perimeter. Third gasket segment 52 is
between first and second gasket segments 50 and 58 along the
extension direction along the perimeter. Second gasket segment 58
is between third and fourth gasket segments 52 and 60 along the
perimeter. Fourth gasket segment 60 is between second and first
gasket segments 58 and 50 along the extension direction along the
perimeter. First gasket segment 50 extends along the extension
direction between distally opposite first and second beveled ends
62 and 54 tapered along opposing first and second tapers along the
extension direction. Second gasket segment 58 extends along the
extension direction between distally opposite third and fourth
beveled ends 64 and 66 tapered along opposing third and fourth
tapers along the extension direction. Third gasket segment 52
extends along the extension direction between distally opposite
fifth and sixth beveled ends 56 and 68 tapered along opposing fifth
and sixth tapers along the extension direction. Fourth gasket
segment 60 extends along the extension direction between distally
opposite seventh and eighth beveled ends 72 and 70 tapered along
opposing seventh and eighth tapers along the extension direction.
The first and eighth beveled ends engage each other in sealed
relation. The second and first beveled ends engage each other in
sealed relation. The third and sixth beveled ends engage each other
in sealed relation. The fourth and seventh beveled ends engage each
other in sealed relation.
In some embodiments, the two-part gasket includes only first and
second gaskets, with the first gasket extending along the extension
direction between distally opposite first and second beveled ends
tapered along opposing first and second tapers along the extension
direction, and with the second gasket extending along the extension
direction between distally opposite third and fourth beveled ends
tapered along opposing third and fourth tapers along the extension
direction, and with the first and third beveled ends engaging each
other in sealed relation, and with the second and fourth beveled
ends engaging each other in sealed relation.
FIGS. 9-12 show further embodiments and use like reference numerals
from above where appropriate to facilitate understanding. The
filter element and the housing have respective borders 40 and 38
mating with each other at the noted mating interface and extending
along an extension direction along a perimeter, FIG. 11. The mating
interface has a width extending along a radial direction relative
to the perimeter. The mating interface has a length extending along
the noted extension direction. The borders have facing surfaces at
the mating interface, including a first facing surface 80 on the
filter element, and a second facing surface 82 on the housing. At
least one of the first and second facing surfaces extends
non-rectilinearly along the noted extension direction along the
noted length to provide the keyed interface, FIG. 11. In the
preferred embodiment, each of the first and second facing surfaces
80 and 82 extends non-rectilinearly along the noted extension
direction along the noted length to provide the keyed interface,
with one of the facing surfaces, e.g. 82, receiving the other of
the facing surfaces, e.g. 80, in nested relation. In FIGS. 9 and
11, the keyed interface has a V-shape in a cross-sectional plane
taken transversely to the noted radial direction. In such
embodiment, each of the first and second facing surfaces 80 and 82
has the noted V-shape in the noted cross-sectional plane taken
transversely to the noted radial direction, with the V-shape of one
of the facing surfaces, e.g. 82, being a concave V-shape relative
to the interface, and with the V-shape of the other of the facing
surfaces, e.g. 80, being a convex V-shape relative to the
interface, the one facing surface of concave V-shape receiving the
other facing surface of convex V-shape in nested relation. In FIGS.
10 and 12, the keyed interface 40a, 38a, at facing surfaces 80a and
82a has an arcuate shape in a cross-sectional plane taken
transversely to the noted radial direction. In the preferred
embodiment, each of the first and second facing surfaces 80a and
82a has the arcuate shape in the noted cross-sectional plane taken
transversely to the noted radial direction, with the arcuate shape
of one of the facing surfaces, e.g. 82a, being a concave arcuate
shape relative to the interface, and with the arcuate shape of the
other of the facing surfaces, e.g. 80a, being a convex arcuate
shape relative to the interface, and with the one facing surface of
concave arcuate shape receiving the other facing surface of convex
arcuate shape in nested relation.
FIG. 13 shows another embodiment having one or more mounting pin
locators such as 81, 83 along the borders, providing in one
embodiment one or more given or specific orientations of the filter
element and the housing. In another embodiment, the one or more
mounting pin locators provide one-way-only fit of the filter
element in the housing. In another embodiment, the one or more
mounting pin locators provide replacement of only an authorized
replacement filter element.
In further embodiments, the filter element and the housing have
borders 40 and 38 mating with each other at a seal at the mating
interface and extending along the extension direction along a
perimeter defining an engagement plane, with each border and the
seal having a non-symmetrical shape in the noted engagement plane,
such as non-symmetrical shape 88 in FIG. 14, or other
non-non-symmetrical shapes. In one embodiment, the seal is provided
by a gasket 89, and the gasket follows a non-symmetrical profile.
In a further embodiment, the non-symmetrical profile of gasket 89
reduces volume of the housing. In one embodiment, the border has a
portion with a heart shape segment, for example as shown at 89. The
borders on the filter element and the housing are complemental to
each other in the engagement plane, which in combination with
non-symmetry provides one-way-only fit of the filter element in the
housing. In a further embodiment, the filter element and the
housing have borders mating with each other at the mating interface
and extending along the extension direction along a perimeter
defining an engagement plane and are configured to provide
one-way-only fit of the filter element in the housing.
Further in the preferred embodiment, a replacement filter element
22 is provided for the noted filtration sealing system wherein the
replacement filter element includes the noted keyed interface. The
filter element includes a keyed border providing the keyed
interface.
Further in the preferred embodiment, a filtration sealing system is
provided for a filter having a filter element in a housing having
at least two sections, the filter element being a first member, the
housing sections including second and third members, wherein at
least two of the noted members meet at a mating interface, and with
the sealing system being a keyed said interface.
The preferred embodiment of the invention further provides a
filtration sealing system for a filter having a filter element in a
housing having a housing port 36, FIG. 15, connected to a flow
conduit 90 for fluid flow therebetween along a flow direction
(downwardly in FIG. 15). Port 36 has a length extending along the
flow direction, and a width transverse to such length. The width of
the port varies along the length of the port, preferably providing
a lead-in for assembly into the flow conduit. The port extends
longitudinally along a longitudinal axis 92 along the length and
has a tapering sidewall 94 which tapers as it extends
longitudinally. Tapering sidewall 94 provides the noted varying
width. Port 36 tapers frustoconically along tapering sidewall 94.
The tapering sidewall has one or more sealing tabs 96 engaging flow
conduit 90 in mechanical wiper sealing relation. Conduit 90 may be
a resilient flexible material, e.g. rubber, which may stretch as it
fits over and around sidewall 94 and sealing tab 96, or conduit 90
may have a frustoconical taper complemental to the frustoconical
taper of sidewall 94.
In a further embodiment, the gasket and the housing are configured
such that a new gasket may optionally be supplied every time the
filter element is replaced. In a further embodiment, the gasket and
the housing are configured such that a new gasket must be replaced
every time the filter element is replaced. This reduces concern of
the gasket taking a compression set over time at the housing and
leaking when it interfaces with the filter element. The housing may
be provided with one or more snap-fit slits or grooves for
receiving the replaceable gasket.
In the foregoing description, certain terms have been used for
brevity, clearness, and understanding. No unnecessary limitations
are to be inferred therefrom beyond the requirement of the prior
art because such terms are used for descriptive purposes and are
intended to be broadly construed. The different configurations,
systems, and method steps described herein may be used alone or in
combination with other configurations, systems and method steps. It
is to be expected that various equivalents, alternatives and
modifications are possible within the scope of the appended
claims.
* * * * *